Plastic Bonding EN - Inseto UK

Plastic BondingRequirements, Adhesives, Applications P

last

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pyr

amid

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DELO PHOTOBOND1C acrylate

DELO KATIOBOND1C epoxy resin

DELO DUALBOND1C adhesive

4494 AD494 PB437 4552 4594 AD4950 AD465 AD345

ABS +++ ++ +++ ++ + +++ ++ +++

CFRP +++ + +++ +++ +++ ++ +++ +++

FR4 EGS619 * +++ +++ +++ +++ +++ +++ +++ +++

LCP Vectra E130i * + + + ++ ++ + + +

PA Sustamid 6 * +++ ++ +++ +++ +++ ++ +++ –

PBT Pocan 3235 * – + – + + – + ++

PC +++ +++ +++ +++ +++ ++ +++ +++

PC-ABS Bayblend T65 * +++ ++ ++ ++ + +++ ++ +++

PET * + + + ++ ++ + + ++

PMMA ++ + ++ ++ + ++ –

PPS Fortron 6165A4 * +++ ++ +++ +++ +++ + ++ ++

Plastics that are diffi cult to bond: POM, PP, PTFE

Additional surface pretreatment (see page 6) can improve the bondability of plastics that are diffi cult to bond.

Initial compression shear strength on cleaned but not pretreated surfaces– 0 to 4 MPa + 5 to 9 MPa ++ 10 to 14 MPa+++ 15 MPa and upn. d. not determined

Bondability of plastics

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DELO-ML1C methacrylate

DELO MONOPOX1C epoxy resin

DELO-DUOPOX2C epoxy resin

DELO-PUR2C polyurethane

DB133 DB135 AD066 6093 LT204 02 rapid AD840 AD895 9694 AD948

+++ – +++ +++ ++ ++ ++ +++ ++ ++

+++ +++ +++ +++ n. d. +++ +++ +++ +++ +++

+++ + +++ +++ +++ +++ +++ +++ +++ +++

+ – +++ +++ + ++ +++ +++ + +

++ +++ +++ +++ +++ +++ +++ ++ ++ +++

+ – +++ +++ ++ + ++ + +++ +++

– – ++ + +++ +++ +++ +++ +++ +++

– – +++ +++ +++ + +++ +++ +++ +++

+ – +++ ++ ++ + ++ +++ +++ +++

– – +++ +++ +++ – +++ +++ ++ +++

+++ +++ +++ +++ +++ ++ +++ +++ + ++

AD = ADhesive DB = Dual Bonding GE = General Encapsulant LT = Low Temperature PB = PHOTOBOND

* The compression shear strength of these plastics is greatly improved by surface pretreatment,e. g. atmospheric or low pressure plasma – see page 6 / 7.

High-temperature-resistant plastics up to +260 °C

Technical plastics up to +140 °C

Standard plasticsup to +90 °C

DELO has comprehensive experience and expertise in plastic bonding. In tests performed by DELO’s Engineering, pure plastic bonds and mixed plastic bonds achieve excellent results.

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... are ideal for various applications and requirements:Plastic bonding enables the permanent and reliable joining of plastics that cannot be welded. In addition, it is possible to bond plastics with materials like metal, ceramic or glass. Depending on the requirements, the individual joints can be designed to be fl exible, tension-equalizing, rigid or resistant to high mechanical stress. DELO has adapted its adhesive range to a variety of requirements and application areas by developing special plastic adhesives:

DELO PHOTOBOND

Fast UV / light curing within seconds For joints with high requirements in terms of visual

appearance Good climatic and humidity resistance Available elasticities range from fl exible to hard Universally good adhesion to many materials Broad range of properties

DELO KATIOBOND

Fast light activation / curing within seconds Suitable for opaque materials Dry surface Excellent media and temperature resistance Low outgassing

DELO DUALBOND

Fast light curing combined with reliable curing in shadowed areas (by heat or humidity, depending on the product)

Ideal for plastics with low temperature resistance Good resistance to climatic changes, humidity and

salt spray test Available elasticities range from fl exible to hard

acrylate1C

epoxy1C

acrylatemod. 1C

DELO s adhesives for plastics...

epoxymod. 1C

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DELO-PUR

Easy, “one-component” handling with the DELO-AUTOMIX system

For peel-resistant and tension-equalizing joins Very good strength Suitable for large gaps

DELO-DUOPOX

Especially for very large or temperature-sensitive components

Easy, “one-component” handling with the DELO-AUTOMIX system

High media resistance Suitable for bonding components with

high strength requirements

DELO MONOPOX

For high-strength bonding Very good media resistance Wide temperature range of use: – 40 to +220 °C Easy, one-component handling

DELO-ML DB

Anaerobic and, depending on the product, fast UV or light curing within seconds

For mixed bonds of metal with certain plastics Good media and temperature resistance

acrylateMeth-

epoxy2C

urethane2C poly-

epoxy1C

O2

A+B

A+B

All products are solvent-free and compliant with the RoHS Directive 2015/863/EU.

RoHS

COMPLIANT

Many products are halogen-free acc. to or by the criteria of IEC 61249-2-21. Details can be found in the Technical Data Sheet.

FREE

HALOGEN

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Surfacepretreatment...

Physical -chemical pretreatmentAtmospheric pressure plasmaFor fully automated in-line processes. Ionized air is generated by means of high voltage. When it contacts the surface, it reacts with the plastic, increases its polarity and improves adhesive wettability.

Low pressure plasmaAlso for components with complex geometries (undercuts, boreholes, slots) and bulk materials.Reactive gases are inserted into an evacuated vacuum chamber, and ionized by energy supply. The activated gases react with the plastic surface and improves adhesive wettability.

Atmospheric pressure plasma

DELOTHEN cleanersFor the removal of contaminants and degreasing the surface. DELOTHEN cleaner is sprayed directly onto the surface to be cleaned from a distance of 20 – 30 cm.

After thorough cleaning with a lint-free cloth, the adhesive can then be applied.

In comprehensive tests conducted in DELO’s laboratories, many of our standard adhesives were tested with these pretreatment methods to determine their aging behavior. Our Engineering will be pleased to answer all of your questions!

DELO-SACO blasting techniqueSimultaneous abrasion (SAnd blasting) and COating of the surface.

In order to create perfect bond between plastic and adhesive, the DELO- SACO SIL E primer is later applied to the coated substrate surface. After evaporation of the primer, the adhesive can then be applied.

The “BOND it – Reference Book on Bonding Technology” provides a comprehensive overview of pretreatment methods.

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... for improved bond strength

* APP = Atmospheric pressure plasma LPP = Low pressure plasma

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pr.

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th [M

Pa]

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10

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30

40

Initial value +85 °C / 85 % r. h., 14 d

LPP *Degreased APP *

C15

PBTDELO-DUOPOX AD895

Com

pr.

shea

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th [M

Pa]

0

10

20

30

40


C15


PA 66DELO MONOPOX AD066

Com

pr.

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C15


PPSDELO MONOPOX 6093

Influence of pretreatment on bond strengthIn general, atmospheric or low pressure plasma can signifi cantly increase bond strength, especially with semi-crystalline plastics like PBT, PA and PPS. Even after storage in humid climate, the adhesive achieves strength levels that are up to three times higher than without pretreatment.

Tensile shear test

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DELO adhesives in use

PBT / FR4DELO-PUR 9691 Tough-elastic Normal temperature range of use from

– 40 °C to +125 °C High static / dynamic loading capacity Flowable, suitable for small castings Easy processing from

DELO-AUTOMIX cartridges Successfully tested by the criteria

of UL 94 HB

Casting the PCB of a window hygrometer

Casting a sensor PCB urethane2C poly- A

+B

initial strength

1.5 hviscosity80 Pas

Casting electronic connectorsPBTDELO KATIOBOND 4552 High glass transition temperature Tg

Good fl ow behavior Production capacity: Short cycle times

thanks to very fast curing within seconds Suitable for rigid bonding and sealing

Casting and sealing soldered connector contacts in the cavity of indication instruments

epoxy1C

15 s viscosity1.2 Pas

Vibration protection on PCBsFR4 / Al lacqueredDELO-PUR 9694 Run-resistant High static / dynamic loading capacity Functionality: Optimal vibration damping Multi-purpose Easy processing from

DELO-AUTOMIX cartridges Successfully tested by the criteria

of UL 94 HB

Vibration protection of soldered electronic components, such as capacitors

urethane2C poly- A

+B

initial strength

2 hviscositypasty

AD = ADhesive CR = Casting Resin FB = Fastener Bonding UB = Universal Bonding

Sensor castingPA 6.6 GF30 / FR4 / CuDELO-DUOPOX CR8715 High temperature resistance Excellent media resistance

(e. g. to gasoline, diesel, oil, grease) Normal temperature range of use from

– 65 °C to +200 °C Universal adhesion to standard

substrates (e. g. FR4, PA, PPS, Al, Cu) Excellent fl ow properties for easy

dispensing and short cycle times

Casting an automotive pressure sensor

epoxy2C

viscosity12 Pas

@ 150 °C20 min

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Bonding miniloudspeakersPC / PAR / PA / PBT / PEEKDELO PHOTOBOND UB4086 Temperature range of use up to +150 °C High temperature stability High impact resistance and fl exibility Production reliability: Application control

by fl uorescent adhesive Quality: Loudspeakers bonded with

DELO PHOTOBOND are characterized by excellent acoustic quality

Bonding miniatureloudspeaker elementsfor mobile phones

acrylate1C

6 s viscosity110 Pas

Bonding automotive camerasPBTDELO DUALBOND AD345 Good resistance to temperature,

climatic changes, humidity and in salt spray testing

Short cycle times with light fi xation in < 1 s Optimized process: Heat curing at just

+80 °C enables the use of temperature-sensitive materials and retains the alignment of the optical system

Process reliability: Unchanged, low shrinkage allows high yield

Bonding automotive camera modules for camera-based driver assistance systems

epoxymod. 1C

viscosity30 Pas

Positioning clip for car windowsPC / ABS opaque / ceramic black screen printDELO PHOTOBOND AD494 Gap-fi lling High long-term and media resistance Excellent equalization of tensions with

an elongation at tear of 310 % Fast curing, even through components

that are diffi cult to transmit through

Clip bonded to glass plate

acrylate1C


Bonding ONSERT® fastenersCFRP / PA / PCDELO PHOTOBOND FB4175 Good peel and jacking resistance Good adhesion to plastics (e. g. PA),

fi ber-reinforced plastics (CFRP) and metals

Longer lifetime: Excellent resistance to temperature, climatic changes and humidity

Production capacity: Short cycle times thanks to very fast curing within seconds

ONSERT® stud for CFRP passenger compartments

viscosity210 Pas

acrylate1C

8 s

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DELO adhesives in use

Bonding design light switchesPC / glassDELO PHOTOBOND 4302 Excellent capillary properties High transparency, yellowing resistance

and permanent resistance to light Especially developed for visible interior

bondings High strength

Bonding the glass front of design light switches onto PC

viscosity0.1 Pas

acrylate1C

40 s

PA / metal pin (tin- or silver-plated)DELO DUALBOND GE4910 Excellent fl ow and wetting behavior Reliable curing in shadowed areas Tension-equalizing High fl exibility, even at low temperatures Production capacity: Short cycle times

thanks to very fast curing within seconds Longer lifetime: Resistance to humidity

and temperature shocks

Sealing switches, e. g. for the automotive industry

Sealing microswitches viscosity2 Pas

DB = Dual Bonding GE = General Encapsulant KB = KATIOBOND LP = Low Permeation

Sealing contacts of push buttonsPBT / CuNi (tin-plated)DELO KATIOBOND KB554 Tension-equalizing, even under great

temperature fl uctuations Production capacity: Short cycle times

thanks to very fast curing within seconds High thermal resistance during typical

soldering processes

Sealing soldered contacts for push buttons

viscosity1.5 Pas

epoxy1C

24 s

Laminating organic solar cellsPET / OPVDELO KATIOBOND LP655 Good wet strength Suitable R2R applications (reel-to-reel) High barrier effect towards water vapor

(= low WVTR) No interaction with the OPV layer

(OPV = organic photovoltaics)

Laminating the OPV structure between two barrier foils,curing by means of an array of DELOLUX 20 LED area lamps


epoxy1C

acrylatemod. 1C

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Ferrite bonding on a PCBFerrite / FR4DELO-ML DB136 Normal temperature range of use from

– 60 °C to +180 °C Tension-equalizing Immediate initial strength (after 5 s) with

light fi xation; anaerobic curing of the adhesive in shadowed areas

Process reliability: Application control with fl uorescent adhesives

Successfully tested by the criteria of UL 94 HB

Bonding ferrite elements to an FR4 PCB

Bonding a cover and housingPBT / PBTDELO MONOPOX 6093 Good media resistance

(e. g. to oil, gasoline) Very high resistance to temperatures

and temperature fl uctuations Excellent vibration resistance Multi-purpose for various plastics

(e. g. ABS, PA, PBT)

Bonding a display plate into a housing

Bonding camera housings

PC / aluminum (lacquered)DELO-DUOPOX 02 rapid Very good fl ow properties Good equalization of tensions at

temperature changes from – 30 °C to +70 °C

Easy processing, even at manual workstations, thanks to the DELO-AUTOMIX system

Successfully tested by the criteria of UL 94 HB

PC / PCDELO-PUR 9694 Good resistance to climatic changes Reliable sealing, e. g. against water and

other media Excellent results also with PA, ABS, PBT

and PET Good adhesion, even without

pretreatment Successfully tested by the criteria

of UL 94 HB

Bonding / sealing an automotive camera housingAdhesive applied into the groove

Bonding a display plate made of PC into a powder-coated aluminum housing

urethane2C poly-

A+B

initial strength

12 min

A+B

initial strength

5.5 hviscositypasty

acrylateMeth-

epoxy1C

@ 130 °C30 min

viscosity40 Pas

Bonding a cover to the housing of an automotive control unit

epoxy2C

viscosity12 Pas

viscosity1.2 PasO2

The data and information provided are based on tests performed under laboratory conditions. Reliable information about the behavior of the product under practical conditions and its suitability for a specific purpose cannot be concluded from this. It is the customer's responsibility to test the suitability of a product for the intended purpose by considering all specific requirements and by applying standards the customer deems suitable (e. g. DIN 2304-1). Type, physical and chemical properties of the materials to be processed with the product, as well as all actual influences occurring during transport, storage, processing and use, may cause deviations in the behavior of the product compared to its behavior under laboratory conditions. All data provided are typical average values or uniquely determined parameters measured under laboratory conditions. The data and information provided are therefore no guarantee for specific product properties or the suitability of the product for a specific purpose. Nothing contained herein shall be construed to indicate the non-existence of any relevant patents or to constitute a permission, encouragement or recommendation to practice any development covered by any patents, without permission of the owner of this patent. All products provided by DELO are subject to DELO’s General Terms of Business. Verbal ancillary agreements are deemed not to exist.

© DELO – This brochure including any and all parts is protected by copyright. Any use not expressly permitted by the Urheberrechtsgesetz (German Copyright Act) shall require DELO’s written consent. This shall apply without limitation to reproductions, duplications, disseminations, adaptations, trans lations and microfilms as well as to the recording, processing, duplication and / or dissemination by electronic means.

CONTACT

Dispensing Curing ConsultingAdhesives

Singapore Phone +65 6807 0800 [email protected] www.DELO-adhesives.com/en

Malaysia · Kuala Lumpur Phone +65 6807 0800 [email protected] www.DELO-adhesives.com/en

Headquarters Industrial Adhesives

Germany · Windach / Munich Phone +49 8193 9900-0 [email protected] www.DELO.de

China · Shanghai Phone +86 21 2898 6569 [email protected] www.DELO-adhesives.com/cn

South Korea · Seoul Phone +82 31 450 3038 [email protected] www.DELO-adhesives.com/en

USA · Sudbury, MA Phone +1 978 254 5275 [email protected] www.DELO-adhesives.com/us

Taiwan · Taipei Phone +886 2 6639 8248 [email protected] www.DELO-adhesives.com/cn

01/18

Headquarters Industrial Adhesives

Germany · Windach / MunichPhone +49 8193 [email protected]

China · ShanghaiPhone +86 21 2898 [email protected]/cn

Japan · YokohamaPhone +81 80 1579 [email protected]/en

SingaporePhone +65 6807 [email protected]/en

Malaysia · Kuala LumpurPhone +65 6807 [email protected]/en

South Korea · SeoulPhone +82 31 450 [email protected]/en

USA · Sudbury, MAPhone +1 978 254 [email protected]/us

Taiwan · TaipeiPhone +886 2 6639 [email protected]/cn

Thailand · BangkokPhone +66 2737 6420 Ext. [email protected]/en

Documents

Plastic Bonding EN - Inseto UK